A nurse is caring for a client who is taking digoxin to treat heart failure. Which of the following factors predisposes this client to developing digoxin toxicity?
Taking an HMG CoA reductase inhibitor.
Having a 10-year history of COPD.
Taking a high-ceiling diuretic.
Having a prolapsed mitral valve.
The Correct Answer is C
Taking a high-ceiling diuretic predisposes this client to developing digoxin toxicity because it can cause hypokalemia (low blood potassium level), which increases the sensitivity of the heart to digoxin. Digoxin is a medicine that is used to treat heart failure or arrhythmias (abnormal heart rhythms) by increasing cardiac contractility and controlling the heart rate. Digoxin toxicity happens when there is too much digoxin in the body and it becomes harmful, causing symptoms such as nausea, vomiting, headache, confusion, vision disturbance, and irregular heartbeat.
Choice A is wrong because taking an HMG CoA reductase inhibitor (also called a statin) does not increase the risk of digoxin toxicity.
Statins are lipid-lowering medications used to prevent coronary heart disease by blocking an enzyme involved in cholesterol synthesis.
Statins do not affect the blood potassium level or the sensitivity of the heart to digoxin.
Choice B is wrong because having a 10-year history of COPD (chronic obstructive pulmonary disease) does not increase the risk of digoxin toxicity. COPD is a lung condition that causes breathing difficulties and chronic inflammation.
COPD does not affect the blood potassium level or the sensitivity of the heart to digoxin.
Choice D is wrong because having a prolapsed mitral valve does not increase the risk of digoxin toxicity.
A prolapsed mitral valve is a condition where the valve between the left atrium and left ventricle of the heart does not close properly, allowing some blood to leak back into the atrium.
A prolapsed mitral valve does not affect the blood potassium level or the sensitivity of the heart to digoxin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The client has a negative sputum culture. This indicates that the client is adhering to the medication regimen because a negative sputum culture means that the client is no longer infectious and has cleared the tuberculosis bacteria from their lungs.
Choice A is wrong because testing negative for HIV does not indicate that the client is adhering to the medication regimen for tuberculosis. HIV testing is not related to tuberculosis treatment.
Choice C is wrong because having a positive purified protein derivative test does not indicate that the client is adhering to the medication regimen for tuberculosis.
A positive PPD test means that the client has been exposed to tuberculosis, but it does not indicate whether the client has an active or latent infection. Choice D is wrong because having liver function test results within the expected reference range does not indicate that the client is adhering to the medication regimen for tuberculosis.
Liver function tests are used to monitor for possible adverse effects of isoniazid and rifampin, which can cause hepatotoxicity, but they do not reflect the effectiveness of the treatment.
Correct Answer is ["A","B"]
Explanation
Fluticasone is an inhaled steroid that prevents the symptoms of asthma by decreasing inflammation in the airways. It is not used to treat a sudden asthma attack.
Some additional information to explain why the other choices are wrong are:
Choice C is wrong because soaking the inhaler in water after use can damage the device and affect its performance.
Choice D is wrong because fluticasone is not a rescue inhaler that can be used as needed for shortness of breath.It is a controller inhaler that should be used regularly as prescribed by the doctor.
Choice E is wrong because shaking the device prior to administration is not necessary for a fluticasone metered-dose inhaler (MDI).However, it is recommended for fluticasone inhalation powder (Flovent Diskus). Some normal ranges that may be applicable are:
The usual dose of fluticasone MDI for adults and children 12 years and older is 55 to 232 mcg twice a day.The usual dose of fluticasone MDI for children 4 to 11 years old is 30 mcg twice a day. The maximum dose of fluticasone MDI for adults and children 12 years and older is 1000 mcg twice a day.
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